- standard encoding is ANSI, (resp. UTF8 - if no(-1) encoding default is given in .ini-file: DefaultEncoding=n)
- copy/paste non ANSI characters to ANSI encoded NP3 windo will recode them to ANSI (same as manually recode)

…nd Ctrl-X if nothing is selected (copy / cut current line)

- using Scintilla UTF8 code-page internally for most encodings,
  solves some encoding/code-page problems, the behaviour slightly changes:

  + if DefaultEncoding is not set (or set to DefaultEncoding = -1),
    initial encoding is set to current system's code-page, e.g. Windows-1252
    Scintilla's internal UTF8 code-page is used for edit box,
    that means copy/paste from clipboard may show characters which are
    not valid in this char-set of the selected code-page.
    Trying to save a file with this invalid UTF8 chars will result in conversion dialog:
    ("...  encoding from ANSI to non-ANSI (and vice versa) may replace unsupported text with default characters ...")

 + if DeaultEncoding = 0 (ANSI):
   a) if LoadASCIIasUTF8 = 0 (FALSE), Scintilla's internal ANSI code-page is used for edit box
      that means copy/paste from clipboard may convert chars to ANSI ()
   b) if LoadASCIIasUTF8 = 1 (TRUE), Scintilla's internal UTF8 code-page is used for edit box
    that means the universal UTF8 encoding is used

 + if DeaultEncoding = nnn (corresponding to some ANSI code-page encoding):
   same as if DefaultEncoding is set to corresponding code-page (see section "DefaultEncoding is not set")

- consistent encoding <> code-page handling (including Scintilla's code-page settings)
- Scintilla issue regarding notepad2-mod issie rizonesoft#173 (see XhmikosR/notepad2-mod#193)
- allow arbitrary conversion between encodings (even it it does not make sense in any case)
  (instead of doing silently nothing but changing encoding info on status bar)

- Settings:  SciDirectWriteTech, SciFontQuality
  + values according to Scintilla documentation
  + values = -1 (or not set) - don't call SCI API anyway - should be the same as DEFAULT technology settings (values = 0)
      SC_TECHNOLOGY_DEFAULT = 0,  SC_TECHNOLOGY_DIRECTWRITE = 1,  SC_TECHNOLOGY_DIRECTWRITERETAIN = 2,  SC_TECHNOLOGY_DIRECTWRITEDC = 3
      SC_EFF_QUALITY_DEFAULT = 0, SC_EFF_QUALITY_NON_ANTIALIASED = 1, SC_EFF_QUALITY_ANTIALIASED = 2, SC_EFF_QUALITY_LCD_OPTIMIZED = 3